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Finding the Fourth Proportional to 61,725.60, 92,458.80 and 33,991.20

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Solution

The fourth proportional to 61,725.60, 92,458.80 and 33,991.20 is: 50,915.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,725.60 : 92,458.80 = 33,991.20 : x
  2. Step 2: Convert to fraction form
    61,725.60/92,458.80 = 33,991.20/x
  3. Step 3: Cross multiply
    61,725.60x = 92,458.80 × 33,991.20
  4. Step 4: Simplify right side
    61,725.60x = 3,142,785,562.56
  5. Step 5: Solve for x
    x = 3,142,785,562.56/61,725.60
  6. Step 6: Final answer
    x = 50,915.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.